I have issues with integrating talk into third party software. I tested it with several xmpp clients but none of them worked. Some clients where sayn that something with the certificate is wrong others like pidgin where just showing the message "Unable to connect". I've tested it also with a non onlyoffice adress, and there it was working fine.Don't know what I could do about making it work. Here's my data:

The certificate for yunity.teamlab.eu.com could not be validated.The certificate claims to be from "*.onlyoffice.eu" instead. This could mean that you are not connecting to the service you believe you are.The certificate has expired and should not be considered valid. Check that your computer's date and time are accurate."